Looking for a quick, no-prep way to help your chemistry students review periodic trends? This free set of 24 Periodic Trends Task Cards gives students focused practice with atomic radius, ionization energy, electronegativity, shielding, effective nuclear charge, and reactivity. Students can use these cards as a station activity, partner review, warm-up, exit ticket rotation, or independent practice before a quiz or test. The task cards include a mix of definition questions, element comparisons